DE69526282D1 - Radio communication device - Google Patents

Radio communication device

Info

Publication number
DE69526282D1
DE69526282D1 DE69526282T DE69526282T DE69526282D1 DE 69526282 D1 DE69526282 D1 DE 69526282D1 DE 69526282 T DE69526282 T DE 69526282T DE 69526282 T DE69526282 T DE 69526282T DE 69526282 D1 DE69526282 D1 DE 69526282D1
Authority
DE
Germany
Prior art keywords
communication device
radio communication
radio
communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69526282T
Other languages
German (de)
Other versions
DE69526282T2 (en
Inventor
Hidehiko Norimatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69526282D1 publication Critical patent/DE69526282D1/en
Publication of DE69526282T2 publication Critical patent/DE69526282T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
DE69526282T 1994-05-13 1995-05-02 Radio communication device Expired - Lifetime DE69526282T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6123308A JP2586333B2 (en) 1994-05-13 1994-05-13 Wireless communication device

Publications (2)

Publication Number Publication Date
DE69526282D1 true DE69526282D1 (en) 2002-05-16
DE69526282T2 DE69526282T2 (en) 2002-11-14

Family

ID=14857331

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69526282T Expired - Lifetime DE69526282T2 (en) 1994-05-13 1995-05-02 Radio communication device

Country Status (7)

Country Link
US (1) US5640686A (en)
EP (1) EP0682458B1 (en)
JP (1) JP2586333B2 (en)
KR (1) KR0158785B1 (en)
AU (1) AU691883B2 (en)
CA (1) CA2148673A1 (en)
DE (1) DE69526282T2 (en)

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US6029052A (en) * 1997-07-01 2000-02-22 Telefonaktiebolaget Lm Ericsson Multiple-mode direct conversion receiver
US6188877B1 (en) 1997-07-03 2001-02-13 Ericsson Inc. Dual-band, dual-mode power amplifier with reduced power loss
US6091966A (en) * 1997-09-29 2000-07-18 Ericsson, Inc. Dual-band, dual-mode power amplifier
US6298244B1 (en) 1997-07-03 2001-10-02 Ericsson Inc. Dual-band, dual-mode power amplifier
US6151484A (en) * 1997-08-08 2000-11-21 Ericsson Inc. Communications apparatus and methods for adaptive signal processing based on mobility characteristics
US6108562A (en) * 1997-08-15 2000-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Travel converter for a mobile telephone
KR19990042237A (en) * 1997-11-26 1999-06-15 윤종용 Base station receiver in mobile communication system using variable band pass filter
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US6738601B1 (en) * 1999-10-21 2004-05-18 Broadcom Corporation Adaptive radio transceiver with floating MOSFET capacitors
GB2362544A (en) * 2000-05-17 2001-11-21 Roke Manor Research Filtering module for multi-mode communiction terminal
US6996158B2 (en) * 2001-02-22 2006-02-07 Freescale Semiconductors, Inc. Signal detection using a CDMA receiver
WO2003001688A2 (en) * 2001-06-20 2003-01-03 Telefonaktiebolaget L M Ericsson (Publ) Communications device
GB2376823B (en) * 2001-06-20 2005-05-18 Ericsson Telefon Ab L M Communications device
US20030078037A1 (en) * 2001-08-17 2003-04-24 Auckland David T. Methodology for portable wireless devices allowing autonomous roaming across multiple cellular air interface standards and frequencies
EP1318603B1 (en) * 2001-12-05 2007-07-11 Sony Deutschland GmbH FM receiver with digital bandwidth control
KR20030058414A (en) * 2001-12-31 2003-07-07 삼성전자주식회사 Multi-frequency band transceiver by way of variable band pass filter
GB2394133A (en) * 2002-10-17 2004-04-14 Toumaz Technology Ltd Radio receiver with reconfigurable filtering arrangement
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
US10009814B1 (en) 2004-09-03 2018-06-26 Sprint Spectrum L.P. Multi-mode mobile station and method of changing its network connectivity using a network acknowledgement
WO2006085139A2 (en) 2004-12-22 2006-08-17 Nokia Corporation Interoperability improvement between receivers and transmitters in a mobile station
GB2453622B (en) * 2008-08-21 2009-09-16 Cambridge Silicon Radio Ltd Tuneable filter
US9166471B1 (en) 2009-03-13 2015-10-20 Rf Micro Devices, Inc. 3D frequency dithering for DC-to-DC converters used in multi-mode cellular transmitters
US8538422B1 (en) 2009-04-14 2013-09-17 Sprint Communications Company L.P. Reallocation of resources for dual-mode wireless devices
US8548398B2 (en) 2010-02-01 2013-10-01 Rf Micro Devices, Inc. Envelope power supply calibration of a multi-mode radio frequency power amplifier
US8538355B2 (en) 2010-04-19 2013-09-17 Rf Micro Devices, Inc. Quadrature power amplifier architecture
US8989685B2 (en) 2010-04-20 2015-03-24 Rf Micro Devices, Inc. Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry
US9077405B2 (en) * 2010-04-20 2015-07-07 Rf Micro Devices, Inc. High efficiency path based power amplifier circuitry
US9362825B2 (en) 2010-04-20 2016-06-07 Rf Micro Devices, Inc. Look-up table based configuration of a DC-DC converter
US8942651B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. Cascaded converged power amplifier
US8942650B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. RF PA linearity requirements based converter operating mode selection
US8947157B2 (en) 2010-04-20 2015-02-03 Rf Micro Devices, Inc. Voltage multiplier charge pump buck
US9214900B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Interference reduction between RF communications bands
US9900204B2 (en) 2010-04-20 2018-02-20 Qorvo Us, Inc. Multiple functional equivalence digital communications interface
US9030256B2 (en) 2010-04-20 2015-05-12 Rf Micro Devices, Inc. Overlay class F choke
US9553550B2 (en) 2010-04-20 2017-01-24 Qorvo Us, Inc. Multiband RF switch ground isolation
US8958763B2 (en) 2010-04-20 2015-02-17 Rf Micro Devices, Inc. PA bias power supply undershoot compensation
US9214865B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Voltage compatible charge pump buck and buck power supplies
US9184701B2 (en) 2010-04-20 2015-11-10 Rf Micro Devices, Inc. Snubber for a direct current (DC)-DC converter
US8983407B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Selectable PA bias temperature compensation circuitry
US9008597B2 (en) 2010-04-20 2015-04-14 Rf Micro Devices, Inc. Direct current (DC)-DC converter having a multi-stage output filter
US8983410B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Configurable 2-wire/3-wire serial communications interface
US8913967B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Feedback based buck timing of a direct current (DC)-DC converter
US9048787B2 (en) 2010-04-20 2015-06-02 Rf Micro Devices, Inc. Combined RF detector and RF attenuator with concurrent outputs
US9577590B2 (en) 2010-04-20 2017-02-21 Qorvo Us, Inc. Dual inductive element charge pump buck and buck power supplies
US9065505B2 (en) 2012-01-31 2015-06-23 Rf Micro Devices, Inc. Optimal switching frequency for envelope tracking power supply

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Also Published As

Publication number Publication date
JP2586333B2 (en) 1997-02-26
KR950035153A (en) 1995-12-30
US5640686A (en) 1997-06-17
JPH07307981A (en) 1995-11-21
DE69526282T2 (en) 2002-11-14
CA2148673A1 (en) 1995-11-14
EP0682458A2 (en) 1995-11-15
EP0682458A3 (en) 1995-12-20
AU691883B2 (en) 1998-05-28
EP0682458B1 (en) 2002-04-10
AU1785195A (en) 1995-11-23
KR0158785B1 (en) 1998-12-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition